Motion of a Doublet of Two Cylinders in Contact in a Narrow Channel Flow

[+] Author and Article Information
Masako Sugihara-Seki

National Cardiovascular Center Research Institute, Suita, Osaka 565, Japan

J Biomech Eng 114(4), 546-549 (Nov 01, 1992) (4 pages) doi:10.1115/1.2894110 History: Received November 03, 1991; Revised February 24, 1992; Online March 17, 2008


The motion of two rigid circular cylinders in contact immersed in an incompressible Newtonian fluid in a channel is examined numerically in the zero Reynolds number limit, for various values of the cylinder radius/channel width ratio. Analyses of the time courses of the lateral position and the orientation of the doublet showed that, depending on the initial condition and the doublet/channel size ratio, the doublet exhibit one of the three types of motion: a continuous rotation in the same direction during a period, and a rotation changing its direction at every half period with a large or a small variation of the orientation.

Copyright © 1992 by The American Society of Mechanical Engineers
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